Elevator controller look



(No Model.) 4 Sheets-Sheet 1.

W. G. FAHY. ELEVATOR CONTROLLER LOOK.

Patented Aug. 10, 1897.

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4 Sheets8heet 2.

(No Model.)

W. 0. PAHY. ELEVATOR CONTROLLER LOOK. No. 588,106. PatentedAug'. 10, 1897.

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(No Model.) 4 SheetsSheet 3.

W. O. FAHY.

ELEVATOR CONTROLLER LOOK. No. 588,106. Patented Aug. 10,1897.

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W. G. FAHY. ELEVATOR CONTROLLER LOCK.

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No. 588,106. Patented Aug. 10,1897.

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\VILLIAM O. FAl-IY, OF PHILADELPHIA, PENNSYLVANIA.

ELEVATOR-CONTRIOLLER LOCK.

SPECIEZICATION forming part of Letters Patent 'No. 588,106, dated August 10, 1897.

Application filed April 4, 1896. Serial'llo- 586,179. (No model.)

To all whom it may concern.-

Be it known that I, 'WILLIAM G. FAHY, a citizen of the United States, and a resident of the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful Improvement in Elevator-Controller Looks, of which the following is aclear and sufficient specification, reference being had to the drawings annexed.

My invention operates to prevent the turning of the shaft which operates the valve or other starting mechanism or is positively connected with the same or .to thecontrollercables, so that the controller-ropes will. be unable to turn or rotate it when the landing or floor doors, or any of them, are open, and on the other hand to allow this shaft to be turned when these doors are all closed. From this it results that the elevator-car can not move while any of the floor or landing doors are open, and consequently all danger of injury by crushing to people entering the shaft while the elevator-car is in motion is avoided.

My invention consists, essentially, of the following elements: a locking device movable into and out of positive engagement with a device provided with means for positively engaging with the locking device and moving positively with the mechanism operating the starting and stopping mechanism of the elevator, one of which devices moves with shaft above mentioned, mechanism moving said device in and out of engagement with said cooperating keeper device, and mechanical means operated by the landing-doors for causing the moving of said locking device into such engagement when any of the doors are open (thereby stopping the st-artin g mechanism of the elevator andstopping the elevator-ear) and moving same out of such engagement, and thereby releasing the valve operating or other starting mechanism and allowing the elevator-car to be moved upward and downward when all of the doors are shut.

Various other portions of my device I consider to embrace patentable novelty.

Describing now in detail the form of my invention which I find best in practice, Figure 1 is aside elevation of a portion of shaft in Fig. 2;

with the car therein provided with my inventeddevice. Fig. 2 is a front elevation of parts in the neighborhood of the shaft controlling the-operation-ofthe valve,-and Figs. 3 and 4 are respectively a right side elevation and a plan ofsame. In theright side eleva- -tion no attempt is m ade,ho\vever,to show-anything beyond the plane of the line 3 'y' ofFig. 2. Fig. 5 is a sectional view along the line yy of Fig. 2. Fig.6 is an elevation of the inside ofone'of the floor-landing doors with" the-devices for operating the cable-connected to the device shown in Fig. 2. Fig. 7-is-a sectional view'along the-line x m of Fig.2. Fig. 8 is a sectional view along the line a a and Fig. 9 is a side elevationota floor or landing door, looking at it from the side toward which it moves when opening. Fig. 10 is a side elevation of several stories of .the elevator-well.

The elevator-shaft can be'of any ordinary or usual or convenient construction, as can be the hoisting device, car-controlling mechanism, starting device, and meansfor ingress and egress. All these parts can be varied in all cases to suit the particular problem which the elevator-builder may have to solve in the erection of his plant, and while I have shown a particular form of most of these partsand will particularly describe them in places such description or illustration is not to be 'takenas any limitation on my invention.

Z is the car, which is provided with any suitable hoisting means and which travels vertically inthe shaft \V. The sides of a portion of the shaft are formed by the-partitions Y Y, provided with floor or landing doors X, which when open allow ingress and egress to the shaft. The car is provided with a controlling mechanism which'consists in part of the controller pulleys (3 7 8, connected together by the rods 5 and 0, which are shifted in the ordinary manner and around which pass the controller-cables 1O 10, which pass around the pulley which is securedto the main shaft (1, which operates the valve. These cables are usually keyed fast'to the wheels to give a more positive coaet-ion between them and the shaft 0. The particular form of valve-operating or other starting mechanism and the hoisting meclianism forintoo the part attached or positively connected toshaft 0 is the disk A, provided with ratchetteeth 3 3, set in opposite directions. The

teeth are placed only at the point where the locking mechanism will engage them when the shaft 0 is so turned that the elevator will be substantially stopped, the other part of the disk being a curved surface over which the parts of the locking device adapted to engage the teeth 3 3 will pass without engaging, so that in case the locking mechanism be thrown into action when the elevator-car is in motion the latter do not engage the disk A, but will pass freely over as indeed they will ordinarily do over the ratchet-teeth set in the opposite direction to those they are intended to engage. The locking device consists in the said best form of the pawls B B, set in a suitable framework and having provisions for yieldingly impelling them into contact with the disk A. These provisions are ordinarily a tension-spring H, which is suitably secured to said pawls, to one by the pierced ear Z and to the other by the screweye 71-, which passes through the pawl and allows the regulation of the tension of the spring by the turning of the nut Z) upon the screw m. The framework shown in the'drjawings forms a ver convenient arrangement for the mounting of these pawls and consists of a bed-plate G, in which these "pawls are pivoted, and a standard F,which supports the pawls and lever actuating same, as will be further described. The best form of which I am now aware of devices for moving these locking devices toward and away from the cooperating devices provided with means for positively engaging with the locking device on the shaft is as follows:

I employ a yielding provision, such as the spring H, the detailed description of which I have given, to move toward disk A, and I employ devices acting positively upon the pawls to separate them from the disk. The advantages of this arrangement can be clearly seen by considering that if the motion toward the disk be not positive the pawls will not be strained by coming into cont-act with the outside of the disk in case any landingdoor should be opened when the disk is in such position that the teeth of the parts will fall against the circular untoothed periphery of 'the disk instead of fitting between the teeth. The means I employ for this purpose is a lever N pivoted between the pawls very conveniently to the standard F at the points. This leverN has provisions for engaging with the pawls B B and moving them away from the disk A as the lever is moved toward a position at right angles with the said pawls.

The provisions are rollers O O, engaging with the inner faces -of the pawls. the action of the lever N, I make the rollers moving along the pawls B B to move from a lower to a higher point on the pawls B B, which can very conveniently be done by making notches 2 2, into which the rollers will fall when the lever is shifted, to allow the pawls to contact with the disk and out of which they will be moved as the lever N is moved to separate the pawls from the disk A. In practice I provide this lever N with a sliding lug P,which can be moved along the lever to adjust the amount of motion of the rollers relative to the movement of the means operated by the landing-doors. This is provided with eye 19. For causing the movement of the lever N in a direction to withdraw the rollers O 0 from the notches 2 2 I place thereon a Weight N, which is arranged to slide thereon and is provided with setscrew 17, in the ear n, which holds it in posi tion on the lever N.

The form of mechanical means operated by the landing-doors for causing the movements of the locking device out of engagement with the parts cooperating therewith and moving with the main shaft, which is the best of which I am now aware, is as follows: Ateach door I provide door-operated devices, which are provided with connections extending from same to the device for moving said locking devices out of engagement with the devices, with means for positively engaging with the locking device and cooperating therewith and moving with the main shaft. These door-operated devices in said best form of my device consist of levers of the second class 17, pivoted to the walls of the shaft W at each door intended to be protected and having connected thereto the connections mentioned above. The ends of these levers away from the fulcrum are curved downward and are in engagement with the device cooperating with and placed on the door, this latter, in the best form of my device as aforesaid, being a roller 16, which runs on the top of the lever 17. A guide 15 for the lever is also attached to door. The connection *1 is in practice a wire rope,of smalldiam eter,passing to the upper part of the shaft and connected with the various levers 17 and over the sheaves R R, down to the lug p, to which it is secured. If it is necessary to counterbalance the weight of weight N more than by weight of levers, a weight W can be secured to end of rope.

The operation of the particular form of my invented device which I have described above in detail is as follows: When the landingdoors are all closed, the levers 17 are raised until they stand in the position shown in the To quicken full lines in Fig. 6 and the devices shown in Figs. 2, 3, 4, 5, S, and 9 stand in the position there shown. The controller mechanism is then free to cause the hoisting device to move the car in any desired direction. If one of the doors open, the roller 16 will depress the lever 17, which will pull down the cable a", which will raise the lever N, which will make the rollers O 0 move into the notches 2 2 and allow the spring H to bring the pawls against the disk A. If the pawls are oppositethe teeth 3, they will engage therewith and hold the disk. If opposite any other part, they will not engage, but allow the controller mechanism to be moved into any desired position; but if it is moved to bring them opposite the teeth the position of the starting mechanism will be such that the hoisting mechanism will not move, and the pawls will then catch the teeth and hold the disk until the open door is closed, so that the fulcrum will be about half the width of the lever below the bottom edge of the rollers 16, whereby the top of the lever will be horizontal and will not have any impulse to close until the roller 16 reaches the edge of downward bend near the end of lever 17, and the machine will be locked until the roller has passed this point. \Vhen this occurs, the sharp incline will ordinarily serve to close the door and lock it, so that it is practically impossible to avoid closing the door when the door is pushed sufliciently far to unlock the valve or other starting mechanism.

IVhile I have described with great particularity the details of the best form of device of which I am now aware, many changes and alterations can be made therein by a workman skilled in the art without departing from my invention.

Having now described my invention, what I claim, and desire to secure by Letters Patent, is

1. In an elevator, the combination of a sliding door a lever hung in front of said door, mechanism yieldingly actuating said lever in one direction, said lever having its free end curved in the direction opposite that toward which it is impelled by said mechanism, a guide for said lever, a part connected with the starting mechanism, locking device engaging with said part and connections between said locking device and said lever substantially as described.

2. The combination of means for lockin g the starting and stopping mechanism of an elevator capable of locking engagement with said mechanism only at positions of the same when the elevator-car is substantially sta tionary, a lever and connections between said lever and locking means, said lever being adapted to operate said locking means, means for yieldingly moving said lever in one direction, a series of landing-doors, a series of levers adjacent said landing-doors, and adapted to be oscillated on the opening and closing of said doors, and a connection between all of said levers and said lever adapted to operate the locking means, substantially as described.

3. The combination of means for locking the starting and stopping mechanism of an elevator, a lever and connections between said lever and locking, means, said lever being weighted at one end and adapted to operate said locking means, a series of landing-doors,

a series of levers adjacent said landing-doorsand adapted to be oscillated on the opening and closing of said doors, and connection between all of said levers and the said weighted lever, substantially as described.

4. In an elevator, the combination of a rotating device positively connected with the starting and stopping mechanism, a pair of pawls suitably pivoted and having the free ends of each movable in and out of position to engage positively with said rotating device, said rotating device being provided with means for engaging with said pawls only when the elevator is stationary, yieldingly-acting devices for urging said pawls into contact with said rotating device, alanding-door and means whereby the said pawls are moved out of engagement with the said rotating device when the said door is opened substantially as described.

5. In an elevator, the combination of a pair of pawls suitably pivoted and having at the free end of each, a tooth set substantially opposite the tooth of the other, a rotating device positively connected with the starting and stopping mechanism, and provided with means for positively engaging said pawls only at such points on said device as are opposite the teeth of the pawls when the elevator-car is motionless, yielding devices for urging said pawls into contact with said rotating device, a landing-door, a lever adjacent to said door and connections between said lever and said pawls substantially as described.

6. The combination of the disk attached to and moving with the shaft of the starting and stopping mechanism, the pawls secured to a suitable framework and having their teeth on their free ends lying on either side of the disk, teeth on said disk at the points only thereon that will lie opposite the teeth of the pawls when the disk is in the position it will occupy when the starting and stopping mechanism is in position to hold the car substantially motionless and having the rest of the periphery of the disk upon which the pawls may impinge without means for engaging with the same, yieldingly-acting means for drawing said pawls toward each other and toward said disk and means operated by landingdoors acting in opposition to said yielding means for causing the separation of said pawls, substantially as described.

7. In an elevator, the combination with a car, a rotating device positively connected to the starting and stopping mechanism, pawls set in a framework and adapted to positively engage with said rotating device only when r too said car is substantially stationary, a lever mounted in said framework, and provided with means for engaging with said pawls, a yieldingly-acting device for yieldingly im pelling said pawls in one direction, a landingdoor and means operated bythe opening and closing of said landing-door for oscillating said lever, substantially as described.

8. In. an elevator the combination with a part rotating positively with the starting and stopping mechanism, pawls engaging with the same, a yieldingly-acting device impelling said pawls toward the part with which they engage, a positively-acting device having provisions for engaging with the facesof said pawls, the said faces being raised where said provisions will rest when the pawls are separated and depressed where said provisions will rest when the pawls are drawn toward the said part rotating with the starting and stopping mechanism, a landing-door, a lever adjacent to said landing-door, and connections between said lever and said positivelyacting device, substantially as described.

9. In an elevator, the combination of a car, a rotating part positively connected with the starting and stopping mechanism and provided with means for engagingwith pawls coacting therewith only at such points as lie opposite said pawls when the car is substantially stationary, pawls, a yieldingly-acting device for yieldingly impelling said pawls toward said rotating part, a rocking lever pivoted between said pawls and having provisions for engaging with the face of said pawls, a yieldin gly-acting device acting upon said lever, to cause it to separate said pawls from said rotating part, a landing-door, and mechanism operated by said landing-door for causing the movement to said lever in a direction to separate the pawls from said rotating part substantially as described.

10. The combination of an elevator-car, a locking device for the stopping and starting mechanism and adapted to lock only when said car is substantially stationary, a series of landing-doors, a series of levers opposite said landing-doors and depressed positively by the opening of said doors, a sheave placed above said doors, a flexible connection se cured to said levers and extending upward over said sheave and downward from sheave free from engagement with said levers,means for moving said locking device yieldingly actuated in one direction by a yieldingly-acting device and actuated positively in the other by said connection, and means for counterbalancing the weight of said levers, all substantially as described.

11. The combination of a car means for looking the starting and stopping mechanism of an elevator lockin g only when said car is substantially stationarya lever and connections between said lever and locking means, said lever being adapted to operate said locking means, means for yieldingly moving said lever in one direction, a series of landing-doors,

a series of levers adjacent said landing-doors and adapted to be oscillated on the opening and closing of said doors and a flexible connection secured to each of said levers and to said lever. adapted to actuate said locking" levers, and to said lever having connections between itself and the locking device, all substantially as described.

13. The combination of a car, means for lockingthe starting and stopping mechanism of an elevator, locking only when the car is substantially stationary a lever, rollers secured to said lever and engaging with said locking device, means for yieldingly moving said lever in one direction, a series of landingdoors, a series oflevers adjacent to said land,- ing-doors, and adapted to be oscillated on the opening and closing of said doors, and a flexi ble connection secured to each of said levers, and extending between them and the lever adapted to actuate said locking means, substantially as described.

14. In an elevator, the combination with a car, a rotating part positively connected with the starting and stopping mechanism, of a locking device, adapted to be moved into and out of positive connection with said part only when the car is substantially stationary, yieldingly-acting means for bringing said locking device into engagement with said rotating part, a positively-acting device operating to move said locking device out of engagement with said rotating part, a series of landingdoors, a series of levers opposite said doors and a flexible connect-ion connecting all of said levers to said positively-acting mechanism,

substantially as described.

15. The combination of an elevator -.car means for locking the starting and stopping mechanism of an elevator, locking only when said car is substantially stationary yieldinglyactuated means for bringing the locking means into locking engagement with the said stopping and starting mechanism, alever adapted to operate said locking means, a roller connection between said lever and locking means, means for yieldin gly moving said lever in one direction, a series of landing-doors, .a series of levers placed opposite said doors, a roller and guide placed upon each of said doors and engaging with said levers and a flexible connection secured to each of said levers opposite said doors and to the levers adapted to operate said locking means all substantially as described.

16. The combination of a toothed disk toothed on a portion only of its circumference a pair of pawls placed on either side of said disk, engaging with the teeth thereof, a spring 588,106 I i Y ,5

secured to the said pawls, and tending to bring them into contact with the disk, a lever turning on bearings set between said pawls and having means for engaging with said pawls, yieldin gly-actin g means for causing the movement of said lever in one direction and means actuated by the opening and closing of the elevator-doors for causing the movement of the said lever in the other direction, substantially as described.

17. In an elevator, the combination with a rotating toothed disk moving positively with the starting and stopping mechanism, of a framework, a pair of pawls set in said framework, and having a portion of their faces cut away, a rocking lever pivoted between said pawls and provided with rollers engaging with said pawls and lying in said cut-away parts thereof when said pawls are in engagement with said toothed disk, landing-doors and mechanism actuated by said landing-doors operating to move said lever in one direction when any of the doors are open and into another position when all of the doors are closed, substantially as described.

18. In an elevator, the combination of a revolvin g disk moving positively with the starting and stopping mechanism, and having a small portion only of its periphery provided with teeth, pawls engaging with said disk, a framework in which said pawls are set, a weighted lever having bearings between said pawls set in said framework, a landing-door, a lever set opposite said landing-door, and a flexible connection extending between said lever opposite said door and said weighted lever, all substantially as described.

19. The combination in an elevator with a car and a rotating part in positive connection with the stopping and starting mechanism, of alocking device adapted to engage with said part only when said car is substantially stationary, a series of landing-doors, a series of levers opposite said doors, rollers and guides upon said doors engaging with said levers, a lever for operating said locking device, and a flexible connection to each of said levers adjacent to said doors and to the lever operating said locking device, substantially as described.

20. The combination of an elevator-car series of landing-doors, a series of oscillating levers operated positively in one direction by the opening of said doors, means for yieldingly operating said levers in'the opposite direction, a locking'device for the starting and stopping devices of the elevator, adapted to look only when the car is substantially stationary a lever adapted to operate said locking device, and a single flexible connection connected to each of said levers opposite the doors, and said lever operating said locking device, substantially as described.

21. The combination in an elevator, with a disk positively connected to the starting and stopping mechanism, said disk being provided at diiferent portions of its circumference with teeth set in opposite directions each set extending over only an arc of saideircumference of a pair of pawls, a framework in which said pawls are set, a weighted lever pivoted on said framework, having rollers secured thereto engaging with the faces of said pawls, a spring secured between said pawls, landingdoors and mechanism operated by the opening and closing of the said landing-doors actuating said lever in one direction, when all of the doors are open and allowing it to move into another when all of the doors are closed substantially as describedf 22. In an elevator, the combination with a rotating part positively connected to the startin gand stopping mechanism, of apair of pawls adapted to engage with said rotating part, a spring secured between said pawls to one of which one end of said spring is secured, said spring having a screw-stem, a set-screw turning on said stem and bearing against one of said pawls, a lever pivoted between said pawls and having provisions for moving said pawls in the opposite direction to that in which they are moved by the said spring, a landing-door, and mechanism operated by the opening and closing of said landing-door by which said lever is moved in one direction when the door is open and in the other direction when the door is closed, substantially as described.

23. In an elevator, the combination with a disk positively connected with the starting and stopping mechanism of a pair of pawls adapted to engage with said disk only when said car is substantially stationary, a spring secured between said pawls, and acting to bring the pawls into engagement with said disk, a lever pivoted between said pawls, and provided with rollers engaging with said pawls, yieldingly-actuated mechanism operated to move said lever in one direction, a landing-door and positively-actuated mechanism operated by the opening of said landing-door, to move said lever in the opposite direction to that in which it is moved by said yieldingly-actuated mechanism substantially as described.

24:. In an elevator the combination of an elevator-car a rotating part positively connected with the starting and stopping mechanism, of a locking device adapted to be moved into and out of engagement with said part only when said car is substantially stationary, a series of landing'doors, a series of levers adjacent to said landing-doors, pivoted at one end and engaging with the said door and a flexible connection attached to said levers between pivot and the part engaging with said door, and extending between said levers and said locking device, substantially as described.

25. In an elevator, the combination with a car a revolving part positively secured to the starting and stopping mechanism of a pair of pawls adapted to be moved into and out of ingly urging said pawls into engagement with said disk, a lever pivoted between said pawls and provided with rollers engaging with the faces of said pawls, a bed-plate in which said pawls are mounted, a standard rising from said bed-plate to which said levers are pivoted, a guide-piece for said pawls, secured to said standard, landing-doors and means'operated by the opening and closing of the landing-doors for controlling the movement of said lever substantially as described.

'26. In an elevator, the combination with a part positively connected with the starting and stopping mechanism, a locking device adapted to be moved into and out of positive connection with said part, a yieldingly-actin g device for moving said locking device into such positive engagement only when the elevator is substantially stationary, a landingdoor, a lever adapted to be operated by said door and connections between said lever and said locking device for causing the locking device to disengage itself from said part when said door is closed, substantially as described.

27. In an elevator, the combination of a rotating part positively connected with the starting and stopping mechanism, a locking device adapted to engage said rotating part positively, and only when the elevator is stationary, a yieldingly-acting device operating to move said locking device into such engagement, a landing-door, and mechanical connections between said door and locking device for causing the locking device to disengage itself from said rotating part when the door is closed, substantially as described.

28. In an elevator, the combination of a locking device, a toothed disk positively connected, with the starting and stopping mechanism, and having teeth set to engage said loekin g device only at points on the periphery of same that will be opposite the said locking device when the elevator is stopped, yieldin gly-actin g mechanism for bringing the locking device into engagement Withsaid toothed disk, a landing-door, a lever oscillated by the movements of said landing-door, and connections between said locking device and lever whereby the said locking device is disengaged from said toothed disk when said door is closed, substantially as described.

In testimony whereof I have hereto set my hand this 19th day ofM-arch, 1896.

WILLIAM o. FAHY.

In presence of- GEO. W. REED, MARK TILKS CoLLET. 

